[FFmpeg-user] "ERROR: libx264 not found" Ubuntu 11.10

[Andreas Grehn]

I've followed the guide for installing ffmpeg on Ubuntu 11.10 located here:
http://ubuntuforums.org/showthread.php?t=786095

When I get to this part all hell breaks loose.
-----------------------
root at kameraserver:~/ffmpeg# ./configure --enable-gpl --enable-libfaac
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree
--enable-postproc --enable-version3 --enable-x11grab
ERROR: libx264 not found
If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user at ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solving the problem.
-----------------------

As instructed the complete config.log is available here
http://pastebin.com/L3jEM3wZ.

x264 seems to be installed, I guess, I have no experience of checkinstall
but I can't see any errors.
The result of checkinstall is at this location http://pastebin.com/mCiZHQ8f.


With some reading of the configure.log for ffmpeg I tried to put x264.h in
/usr/include. That resulted in config.log ending with a request to find
x264_config.h, I promptly copied that aswell and now it ends with the
following error.
-----------------------
check_lib x264.h x264_encoder_encode -lx264
check_header x264.h
check_cpp
BEGIN /tmp/ffconf.4KTJhgCU.c
    1 #include <x264.h>
    2 int x;
END /tmp/ffconf.4KTJhgCU.c
gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -std=c99 -fomit-frame-pointer
-pthread -E -o /tmp/ffconf.l7QVcEji.o /tmp/ffconf.4KTJhgCU.c
In file included from /tmp/ffconf.4KTJhgCU.c:1:0:
/usr/include/x264.h:36:4: warning: #warning You must include stdint.h or
inttypes.h before x264.h [-Wcpp]
check_func x264_encoder_encode -lx264
check_ld cc -lx264
check_cc
BEGIN /tmp/ffconf.4KTJhgCU.c
    1 extern int x264_encoder_encode();
    2 int main(void){ x264_encoder_encode(); }
END /tmp/ffconf.4KTJhgCU.c
gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -std=c99 -fomit-frame-pointer
-pthread -c -o /tmp/ffconf.l7QVcEji.o /tmp/ffconf.4KTJhgCU.c
gcc -Wl,--as-needed -o /tmp/ffconf.QuRwmCOy /tmp/ffconf.l7QVcEji.o -lx264
-lvorbisenc -lvorbis -logg -ltheoraenc -ltheoradec -logg -lopencore-amrwb
-lopencore-amrnb -lmp3lame -lfaac -lm -pthread -lz
/usr/bin/ld: cannot find -lx264
collect2: ld returned 1 exit status
ERROR: libx264 not found
-----------------------

The warning about stdint.h I have absolutely no clue as to how to solve,
hence this message.

I have some Linux knowledge and I have some c/c++ experience but this is
way out of my comfort zone.